l Run the debugging bgp update vpn-instance vpn-instance-name peer ip-address [ acl
acl-number | ip-prefix ip-prefix-name ] [ receive | send ] [ verbose ] command in the user
view to enable the BGP Update packets debugging of VPN instances.
l Run the debugging bgp update vpnv4 [ peer ip-address ] [ receive | send ] [ verbose ]
command in the user view to enable the BGP Update packets debugging of VPNv4 routes.
l Run the debugging bgp update label-route [ peer ip-address ] [ acl acl-number | ip-
prefix ip-prefix-name ] [ receive | send ] [ verbose ] command in the user view to enable
the BGP Update packets debugging of labeled routes.
----End
3.14 Configuration Examples
This section provides several configuration examples of BGP/MPLS IP VPN.
3.14.1 Example for Configuring the BGP/MPLS IP VPN
3.14.2 Example for Configuring Overlapping Addresses in Two BGP/MPLS IP VPNs
3.14.3 Example for Configuring BGP ASN Substitution
3.14.4 Example for Configuring Hub&Spoke
3.14.5 Example for Configuring Inter-AS VPN Option A
3.14.6 Example for Configuring the HoVPN
3.14.7 Example for Configuring the OSPF Sham Link
3.14.8 Example for Configuring the Multi-VPN-Instance CE
3.14.9 Example for Configuring VPN FRR
3.14.10 Example for Configuring Double RRs to Optimize VPN Backbone Layer
3.14.1 Example for Configuring the BGP/MPLS IP VPN
Networking Requirements
As shown in Figure 3-3, CE1 and CE3 belong to VPN-A and CE2 and CE4 belong to VPN-B.
The VPN target of VPN-A is 111:1, and VPN target of VPN-B is 222:2. The users in different
VPNs cannot access each other.
3 BGP/MPLS IP VPN Configuration
Quidway S9300 Terabit Routing Switch
Configuration Guide - VPN
3-56 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 03 (2009-08-20)
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